Portable blender



FIG. 1 is a front view of a portable blender showing the new design;

FIG. 2 is a left-side view thereof;

FIG. 3 is a front-left perspective view thereof;

FIG. 4 is a bottom-left perspective view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a rear view thereof.

The portions shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a portable blender, as shown and described. 